Issue 25 - System Operator Newsletter

National Winter Group 2008

Work is well underway with a target to produce a report in early December outlining the expected position for Winter 2008 assuming continued unavailability of HVDC Pole 1.

A new addition on our website: transfer limits on the HVDC with only Pole 2 in operation.

December industry forums – new market systems

We have finalised the run times for our December Industry Forum. The forum will focus on matters related to the introduction of our new market systems, and will refer to other industry matters if time permits.

The forum will be held:

Wellington
1.00pm – 4.00pm - 3 December - James Cook Hotel, the Terrace

Christchurch
9.30am – 12.30pm - 6 December - Holiday Inn on Avon

Auckland
9.30am – 12.30pm - 7 December - Ellerslie Novotel

Forum topics will include:

• Introduction
  - an overview of the new market systems
• Scheduling and dispatch
  - block security constraints - changes in how these are notified
  - frequency keeping - changes in how instructions are issued
  - voltage indications and the use of State Estimator
  - notices - new formats
  - Electronic Dispatch Facility
• Changes to the market model
  - disconnected nodes - e-nodes and p-nodes
• Constraints
  - SFT and SFT check - how security will be managed and how constraints will be published
• Project implementation
  - transition planning – what we are planning, key dates and when changes will be introduced
  - weekly dispatch schedule - what will happen during transition
  - the progressive role out of the simultaneous feasibility test (SFT)
  - other schedules during transition.

The meetings will run approximately 3 hours. Please register attendance with Kylie Harris, 04 495 7045 or 021 348 717.